I love the concept of CipherSaber, which is
nothing more than a bit of protocol around RC4, creating a
secure cryptosystem which is simple enough to pass by mouth.
The challenge is that you implement this with your own
program, which is at most a 60 minutes excersize for an
average programmer.

A natural thought, therefore, is to collect all these
programs on a list, which I intend to do on the CipherSaberList.
Entries both in computer and natural languages are welcome.